<!-- eslint-disable vue/return-in-computed-property -->
<template>
  <div class="post-detail-page">
    <modal
      title="删除文章"
      :visible="modalIsVisible"
      @modal-on-close="modalIsVisible = false"
      @modal-on-confirm="hideAndDelete"
    >
      <p>确定要删除这篇文章吗</p>
    </modal>
    <article class="w-75 mx-auto mb-5 pb-3" v-if="currentPost">
      <img
        :src="currentImageUrl"
        alt="currentPost.title"
        class="rounded-lg img-fluid my-4"
        v-if="currentImageUrl"
      />
      <h2 class="mb-4">{{ currentPost.title }}</h2>
      <div
        class="user-profile-cpmponent border-top border-bottom py-3 mb-5 align-items-center row g-0"
      >
        <div class="col">
          <user-profile
            :user="currentPost.author"
            v-if="typeof currentPost.author === 'object'"
          >
          </user-profile>
        </div>
        <span class="text-muted col text-right font-italic"
          >发表于：{{ currentPost.createdAt }}</span
        >
      </div>
      <div v-html="currentHTML"></div>
      <!-- <div>{{ currentHTML }}</div> -->
      <!-- <div>{{ currentPost.content }}</div> -->
      <div class="btn-grop mt-5" v-if="showEditArea">
        <router-link
          :to="{ name: 'create', query: { id: currentPost._id } }"
          type="button"
          class="btn btn-success"
          >编辑</router-link
        >
        <button type="button" class="btn btn-danger" @click="modalIsVisible=true">删除</button>
      </div>
    </article>
  </div>
</template>

<script lang="ts">
import { defineComponent, onMounted, computed, ref } from "vue";
import Modal from "@/components/Modal.vue";
import MarkdownIt from "markdown-it";
import { GolbalDataProps, PostProps, ImageProps, UserProps,ResponseType } from "@/store";
import { useRoute, useRouter } from "vue-router";
import { useStore } from "vuex";
import UserProfile from "@/components/UserProfile.vue";
import createMessage from "@/hooks/createMessage";
export default defineComponent({
  components: {
    Modal,
    UserProfile,
  },
  setup() {
    const store = useStore<GolbalDataProps>();
    const route = useRoute();
    const router = useRouter();
    const currentId = route.params.id;
    const modalIsVisible = ref(false);
    const md = new MarkdownIt();
    onMounted(() => {
      // 文章列表
      store.dispatch("fetchPost", currentId);
    });
    const currentPost = computed<PostProps>(() =>
      store.getters.getCurrentPost(currentId)
    );
    // eslint-disable-next-line @typescript-eslint/no-empty-function
    const showEditArea = computed(() => {
      // 判断我们登录的id是否等于我们文章作者的id
      // 是否显示编辑和删除区域
      const { isLogin, _id } = store.state.user;
      if (currentPost.value && currentPost.value.author && isLogin) {
        const postAuthor = currentPost.value.author as UserProps;
        return postAuthor._id === _id;
      } else {
        return false;
      }
    });
    // eslint-disable-next-line vue/return-in-computed-property
    const currentHTML = computed(() => {
      const { content } = currentPost.value;
      if (currentPost.value && content) {
        return md.render(content);
      }
    });
    // eslint-disable-next-line vue/return-in-computed-property
    const currentImageUrl = computed(() => {
      if (currentPost.value && currentPost.value.image) {
        const { image } = currentPost.value;
        return (image as ImageProps).url;
      } else {
        return null;
      }
    });
    const hideAndDelete = () => {
      modalIsVisible.value = false;
      store
        .dispatch("deletePost", currentId)
        .then((rawData: ResponseType<PostProps>) => {
          createMessage("删除成功，2秒后跳转到专栏首页", "success", 2000);
          setTimeout(() => {
            router.push({
              name: "column",
              params: { id: rawData.data.column },
            });
          }, 2000);
        });
    };
    return {
      currentHTML,
      currentImageUrl,
      currentPost,
      showEditArea,
      modalIsVisible,
      hideAndDelete,
    };
  },
});
</script>

<style scoped></style>
